Title: A comparison of recent metaheuristic algorithms for crashworthiness optimisation of vehicle thin-walled tubes considering sheet metal forming effects

Authors: Selçuk Karagöz; Ali Rıza Yıldız

Addresses: Department of Mechanical Engineering, Bursa Technical University, Bursa, 16190, Turkey ' Department of Mechanical Engineering, Bursa Technical University, Bursa, 16190, Turkey

Abstract: In this paper, recent optimisation techniques have been used to improve crash performance of a thin-walled tube considering influence of the forming history. In the optimisation study, weight and amount of the energy absorption of the thin-walled tubes are chosen as objective function and constraint, respectively. Radial basis functions (RBFs) metamodelling technique was used to approximate the structural responses selected in crash and forming analyses. The performances of recent optimisation algorithms which are particle swarm algorithm, cuckoo search algorithm, gravitational search algorithm (GSA), hybrid gravitational search-Nelder Mead algorithm (HGSANM), league championship algorithm (LCA), firefly algorithm, bat algorithm, interior search algorithm (ISA) and imperialist competitive algorithm (ICA) were investigated to find the optimal thin-walled tube design. The lowest mass of the components is obtained at 1000 function evaluation number (FEN) using hybrid GSA.

Keywords: thin-walled tubes; crash performance; metaheuristics; vehicle design; crashworthiness optimisation; sheet metal forming; impact performance; energy absorption; radial basis function; RBF; metamodelling; structural response; particle swarm optimisation; PSO; cuckoo search; gravitational search algorithm; GSA; Nelder-Mead; league championship algorithm; LCA; firefly algorithm; bat algorithm; interior search algorithm; ISA; imperialist competitive algorithm; ICA; weight reduction; swarm intelligence.

DOI: 10.1504/IJVD.2017.082593

International Journal of Vehicle Design, 2017 Vol.73 No.1/2/3, pp.179 - 188

Available online: 22 Feb 2017 *

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